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Finding the Fourth Proportional to 481.71, 717.47 and 479.39

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Solution

The fourth proportional to 481.71, 717.47 and 479.39 is: 714.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.71 : 717.47 = 479.39 : x
  2. Step 2: Convert to fraction form
    481.71/717.47 = 479.39/x
  3. Step 3: Cross multiply
    481.71x = 717.47 × 479.39
  4. Step 4: Simplify right side
    481.71x = 343,941.96
  5. Step 5: Solve for x
    x = 343,941.96/481.71
  6. Step 6: Final answer
    x = 714.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.